Book title: Methanol Production Technology

Author: Zhao Jianjun

Publisher: Chemical Industry Press

Publishing time: 2008-8 -1

ISBN: 9787122029256

Format: 16 pages

Pricing: 19.00 yuan This book mainly introduces the basic principles, process conditions, and process of methanol production. , main equipment and operating precautions. The contents include: properties of methanol and its aqueous solution; overview of industrial development of synthetic methanol; production of methanol feed gas using natural gas as raw material; production of methanol feed gas using solid fuel as raw material; liquefaction and separation of air; transformation of carbon monoxide in methanol feed gas; drying desulfurization, wet desulfurization and sulfur recovery methods; low-temperature methanol washing, propylene carbonate method, polyethylene glycol dimethyl ether method to remove carbon dioxide; methanol synthesis reaction; distillation of crude methanol.

This book can be used as a teaching material for chemical technology in secondary vocational schools and as a training material for intermediate technicians in chemical enterprises.

Introduction

Section 1 Overview

Section 2 Properties of methanol and its aqueous solution

1. General properties of methanol

2. Properties of methanol-water system

3. The boiling of methanol and organic matter

4. Dissolution of gas in methanol

5. Chemistry of methanol Properties

Section 3 Methanol production method

1. Methyl chloride hydrolysis method

2. Methane partial oxidation method

3. Synthesized from carbon oxides and hydrogen

IV. Industrial development of methanol synthesis

V. Development trends

Thinking and practice questions

Chapter 1 Using natural gas as raw material to produce methanol feed gas

Section 1 Basic principles of natural gas steam reforming

1. Steam reforming reaction and reaction equilibrium

2. The influence of intragranular diffusion on macroscopic reaction rate

Section 2 Natural Gas Steam Reforming Catalyst

1. Main components and their functions

2. Preparation of conversion catalyst

3. Reduction and passivation of conversion catalyst

4. Poisoning and regeneration of catalyst

Section 3. Process operation of natural gas steam reforming Conditions

1. Temperature

2. Pressure

3. Carbon dioxide addition amount

4. Water-to-carbon ratio

5. Space speed

Section 4. Process flow and equipment of natural gas steam reforming

1. ICI method

2. Topse method

3. Kellogg method

4. One-stage furnace and two-stage furnace series method

Summary of this chapter

Thinking and practice questions

Chapter 2 Using solid fuel as raw material to produce methanol feed gas

First, the basic principles and production processes of water-saving gas production

1. The basic principles of solid fuel gasification

II. Classification of solid fuel gasification

Section 2: Production process of pressurized coal-water slurry gasification

I. Overview

II. Development and application of coal-water slurry

3. Coal-water slurry pressurized gasification method

Summary of this chapter

Thinking and practice questions

Chapter 3 Liquefaction and Separation of Air

Section 1 Liquefaction and Separation of Air

1. Temperature and Entropy Diagram of Air

2. Basics of Air Liquefaction Principle

3. Distillation of liquid air

4. Purification of air

Section 2: Air separation process

1 , Low-pressure air expansion type (external pressure oxygen and nitrogen supply)

2. High-pressure air expansion type (full internal pressure oxygen and nitrogen supply)

Section 3 Air Separation Unit Operating Points

1. Startup of the Air Separation Unit

2. Normal Operation

3. Abnormal Phenomenon and Treatment

Summary of this Chapter

Thinking and Practice Questions

Chapter 4 Transformation of Carbon Monoxide in Methanol Raw Gas

Section 1 Principle of Carbon Monoxide Transformation

1. Characteristics of Shift Reaction

2. Chemical Equilibrium of Shift Reaction

3. Shift Reaction Rate

4. Process Operating Conditions

Chapter Section 2 Shift Catalyst

1. Catalyst Composition

2. Shift Catalyst

Section 3 Shift Process and Equipment

1. Medium temperature conversion process

II. Full low-temperature conversion process

III. Main equipment

IV. Key points of sulfur-resistant low-temperature conversion operation

This chapter Summary

Thinking and Practice Questions

Chapter 5 Desulfurization

Section 1 Dry Desulfurization

1. Hydrogenation Conversion of Cobalt and Molybdenum

2. Zinc oxide method

3. Activated carbon method

4. Cobalt and molybdenum hydrogenation

Key points of operation of string zinc oxide desulfurization system

Section 2 Wet Desulfurization

1. Improved ADA method (sodium anthraquinone disulfonate method)

2. Tannin method

3. PDS method

Section 3: Main equipment of desulfurization

1. Desulfurization tower

2. Regeneration equipment

3. Key points of wet oxidation desulfurization production operations

Section 4 Sulfur Recovery

1. Claus Sulfur Recovery Method

2. Wet sulfurization method

3. Shell Paques biological desulfurization method

Section 5: Selection of desulfurization method

1. Dry desulfurization

2. Wet desulfurization

Summary of this chapter

Thinking and practice questions

Chapter 6 Decarbonization of raw gas

Section 1 Elution of carbon dioxide with low-temperature methanol

1. Basic principles

2. Selection of absorption operating conditions

3. Process flow

Section 2 Removal of Carbon Dioxide by Propylene Carbonate Method

1. Properties of Propylene Carbonate

2. Basic Principles

3. Process Conditions

IV. Process flow

Section 3 Polyethylene glycol dimethyl ether method

1. Basic principles

2. Selection of process conditions

3. Process flow and main equipment

4. Production operations

Summary of this chapter

Thinking and practice questions

Chapter 7 Synthesis of Methanol

Section 1 Synthesis Reaction

1. Reaction Principle

2. Thermal Effect of Reaction

3. Chemical Equilibrium of Methanol Synthesis Reaction

4. Reaction Rate of Methanol Synthesis

Section 2 Factors Affecting Synthesis Reaction

1. Factors Affecting Synthesis Reaction Factors

2. Methanol synthesis catalyst

Section 3 Methanol synthesis process flow and synthesis tower

1. Process flow

2. Synthesis tower

Summary of this chapter

Reading materials: New technologies for methanol synthesis

Thinking and practice questions

Chapter 8 Crude methanol Distillation

Section 1: The Purpose and Principle of Distillation

1. The Purpose of Distillation

2. Impurities in Crude Methanol

3. Quality requirements and quality standards of purified methanol

4. Principles and methods of distillation

Section 2: Selection of distillation process

1. Selection of distillation process conditions

2. Several distillation processes

Section 3. Common distillation equipment

1. Float valve tower

2. Guided float valve tower

3. Wire mesh corrugated packing tower

Section 4: Start, stop and normal operation of the distillation unit

1. Preparation before starting

2. Starting the distillation process

3. Stopping the distillation process

4. Normal operation

Summary of this chapter

Thinking and practice questions

References